JP2010158153A - Installation structure and installation method of high-voltage power-receiving equipment for intermediate-to-high multiple dwelling house - Google Patents
Installation structure and installation method of high-voltage power-receiving equipment for intermediate-to-high multiple dwelling house Download PDFInfo
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本発明は、配電線路より中高層集合住宅向けに高圧受電するに際しては、自家用電気工作物として受電設備及び変圧器を設置するに当たり、配電線路と構内とを有効に切り離すとともに、構内事故の場合当該回路を確実に遮断し、配電線路に対し事故の拡大を防止するための遮断器、保護継電器、力率改善用コンデンサ、電力ヒューズ、電圧計・電流計及び計器用変成器並びに電力計器用変成器(ＶＣＴ)その他を含む受電設備の設置の構造及び方法に関する技術分野である。 The present invention, when receiving high-voltage power from the distribution line to the middle- and high-rise apartment building, effectively separates the distribution line from the premises and installs the circuit in the case of a premises accident when installing the power receiving equipment and the transformer as a private electric work. Circuit breakers, protective relays, power factor correction capacitors, power fuses, voltmeters / ammeters and transformers for power meters, and transformers for power meters ( VCT) is a technical field related to the structure and method of installing power receiving equipment including others.
従来より、５０ｋＶＡを超え２０００ｋＶＡ以下の、中高層集合住宅や６ｋＶ級三相３線式配電地域の中規模建築物については、需要家から提供された場所に電力会社所有の変電設備を設置して電力を供給する配電方式が知られている。この変電設備としては、高圧から低圧への変圧器・電力ヒューズなどが設置される。この変電設備の設置場所としては、中高層集合住宅側である需要家から電力会社に貸し室として提供される変電設備室とするのが一般的である。 Conventionally, for medium- and high-rise apartments that exceed 50kVA and below 2000kVA and medium-sized buildings in the 6kV-class three-phase three-wire distribution area, a substation facility owned by a power company is installed at the location provided by the customer. A power distribution system for supplying power is known. As this substation equipment, transformers and power fuses from high voltage to low voltage are installed. As a place for installing this substation equipment, it is common to use a substation equipment room provided as a rental room to a power company from a customer on the middle- and high-rise apartment house side.
ところで、この変電設備室は、中高層集合住宅の建設コストを極力抑える目的から、床面積が最小限に設計され、加えて建物の意匠設計が優先されることから、変電設備室の間口、奥行き、天井高さなどが多様であるため、変電設備の施工においては、提供された変電設備室の間取り等に応じて、現場で金属製の丸パイプを切断し、コンクリート床面の複数箇所に支柱となる丸パイプをアンカーボルトなどにより固定して、これらの支柱に対して丸パイプを間口方向及び奥行き方向に組み付けて、全体として枠状に組立てて、変圧器、電力ヒューズ及び高圧母線などを設置している（例えば、特許文献１）。 By the way, this substation equipment room is designed to minimize the floor area for the purpose of minimizing the construction cost of medium- and high-rise apartment buildings, and in addition, the design of the building is given priority, so the frontage, depth, Due to the variety of ceiling heights, in the construction of substation facilities, metal round pipes are cut on site according to the layout of the substation facility room provided, and pillars are installed at multiple locations on the concrete floor. The round pipe is fixed with anchor bolts, etc., and the round pipe is assembled to these struts in the frontage and depth directions, assembled into a frame shape as a whole, and a transformer, power fuse, high voltage busbar, etc. are installed. (For example, Patent Document 1).
この場合、電気事業者である電力会社から低圧供給を受けるに際して、電力会社は引き込用高圧開閉器を当該中高層集合住宅近傍の配電柱上に設け、変電設備室には前記丸パイプ枠と変圧器、電力ヒューズ及び高圧母線のみを設置している。 In this case, when receiving a low-voltage supply from an electric power company that is an electric power company, the electric power company installs a high-voltage switch for drawing in on the distribution pole near the middle- and high-rise apartment building, and the substation equipment room has the round pipe frame and the transformer. Equipment, power fuse and high voltage bus are installed.
しかしながら、低圧受電から高圧受電に切り替える場合は、限られた変電設備室の空間内に、前記変電設備に加え自家用電気工作物として遮断器、保護継電器のほか、キャビネットや電力計器用変成器(ＶＣＴ)を取付ける必要がある。また、上述した特許文献１に示した方式では、丸パイプを現場で切断して枠状に組立てることから、現場での加工が多いため、コストが高くなるのに加え施工時間が長くなるという問題点がある。既築の中高層集合住宅において変電設備を設置するに際しては、居住者である需要家側に対する電力供給を停止させることから、その施工時間が限られており、現場作業の効率化、省力化を図る必要がある。 However, when switching from low-voltage power reception to high-voltage power reception, in addition to the above-mentioned substation equipment, in addition to the substation equipment, in addition to circuit breakers and protective relays, cabinets and power meter transformers (VCT) ) Need to be installed. In addition, in the method shown in Patent Document 1 described above, since the round pipe is cut at the site and assembled into a frame shape, there is a lot of processing at the site, so that the cost is high and the construction time is long. There is a point. When installing substation equipment in existing high-rise apartment buildings, the power supply to the resident consumers is stopped, so the construction time is limited, and the work on site is made more efficient and labor-saving. There is a need.
そこで、本発明は以上の点に鑑みてなされたもので、配電線路より中高層集合住宅向けに高圧受電するに際して、限られた空間内に所要の設備を合理的に収納・設置するための現場作業を効率化・省力化することを目的として、受電設備の設置構造及び設置方法を提供することをその課題とする。 Therefore, the present invention has been made in view of the above points, and when receiving high voltage power from the distribution line to the middle-to-high-rise apartment house, the field work for rationally storing and installing the necessary equipment in the limited space For the purpose of improving the efficiency and labor saving, an object is to provide an installation structure and an installation method of a power receiving facility.
上記課題を解決するために、本発明は、配電線路電圧から中高層集合住宅用電圧に変圧する変圧器を含む受電設備の設置構造であって、アングル材によって構成された複数の単位フレームを、分解可能に組立てて構築されるフレーム部と、分解された状態のアングル材に、電力計器用変成器（ＶＣＴ）以外の受電設備を固定する固定手段と、フレーム部が組立てられた状態において、受電設備に含まれる機器同士を接続する配線手段とを有し、組立てられた状態のフレーム部内には、電力計器用変成器が設置されるＶＣＴ用設置空間が確保され、組立てられた状態のフレーム部内において、受電設備の一部又は全部が、ＶＣＴ用設置空間の上方に積み上げられている。 In order to solve the above-mentioned problems, the present invention is an installation structure of a power receiving facility including a transformer that transforms a distribution line voltage to a medium- and high-rise housing voltage, and disassembles a plurality of unit frames made of angle members. In a state where the frame part is assembled and constructed, a fixing means for fixing the power receiving equipment other than the power meter transformer (VCT) to the disassembled angle member, and the frame part being assembled, the power receiving equipment In the assembled frame portion, a VCT installation space in which a power meter transformer is installed is secured, and in the assembled frame portion A part or all of the power receiving equipment is stacked above the VCT installation space.
他の発明は、配電線路電圧から中高層集合住宅用電圧に変圧する変圧器を含む受電設備の設置方法であって、アングル材を分解可能に組立てて構成されるフレーム部を、単位フレームに分解した状態において、分解された状態のアングル材に、電力計器用変成器（ＶＣＴ）以外の受電設備を固定する分解状態ステップと、分解状態ステップで製作された単位フレームを、受電設備の設置場所に搬入する搬入ステップと、単位フレームを組立ててフレーム部を構築するフレーム構築ステップと、受電設備に含まれる機器同士を接続する配線ステップとを有し、フレーム構築ステップでは、組立てられた状態のフレーム部内に、電力計器用変成器が設置されるＶＣＴ用設置空間を確保するとともに、この組立てられた状態のフレーム部内において、受電設備の一部又は全部を、ＶＣＴ用設置空間の上方に積み上げる。 Another invention is a method of installing a power receiving facility including a transformer for transforming a distribution line voltage to a voltage for a middle- and high-rise apartment house, wherein a frame part configured by disassembling an angle member is disassembled into unit frames. In the state, the disassembled state step for fixing the power receiving equipment other than the power meter transformer (VCT) to the disassembled angle material, and the unit frame manufactured in the disassembled state step are carried into the installation place of the power receiving equipment A carrying-in step, a frame building step for assembling the unit frame to build the frame portion, and a wiring step for connecting devices included in the power receiving equipment. In the frame building step, the frame portion in the assembled state In addition to securing a VCT installation space where the power meter transformer is installed, and in the assembled frame portion Some or all of the power receiving equipment, stacked above the VCT for installation space.
これらの発明によれば、変電設備室における受電設備の設置工事において、予め、工場など設置現場以外の場所において単位フレームに必要な受電設備（遮断器、保護継電器、力率改善用コンデンサ、電力ヒューズ、電圧計・電流計及び計器用変成器など）を組み付けておき、その状態で設置現場に搬入し、現場にて全体として枠状に組立てた後、変電設備に含まれる機器同士を接続する。この結果、現場での組み付け作業を軽減させ、現場作業を効率化・省力化することができる。 According to these inventions, in the installation work of the power receiving equipment in the substation equipment room, the power receiving equipment required for the unit frame (breaker, protective relay, power factor improving capacitor, power fuse) in a place other than the installation site such as a factory in advance. , Voltmeter / ammeter, instrument transformer, etc.) are assembled, carried into the installation site in that state, assembled into a frame shape as a whole at the site, and the devices included in the substation equipment are connected to each other. As a result, on-site assembly work can be reduced, and on-site work can be made more efficient and labor-saving.
また、上記発明において、受電設備は、配電線路と構内とを有効に切り離すとともに、構内事故の場合当該回路を確実に遮断し、配電線路に対し事故の拡大を防止するための装置機器であることが好ましく、遮断器、保護継電器、力率改善用コンデンサ、電力ヒューズ、電圧計・電流計及び計器用変成器並びに電力計器用変成器(ＶＣＴ)等が含まれる。 Further, in the above invention, the power receiving facility is an apparatus device for effectively separating the distribution line from the premises, and reliably blocking the circuit in the case of a premises accident, and preventing the accident from spreading to the distribution line. And a circuit breaker, a protective relay, a power factor improving capacitor, a power fuse, a voltmeter / ammeter, a transformer for a meter, a transformer for a power meter (VCT), and the like.
上記発明において、内部が複数の作業空間に仕切られ、各作業空間が開閉扉で閉止され、各作業空間内に配電系統をそれぞれ収納する供給用配電箱（責任分界点キャビネット）と、責任分界点キャビネットが載置され、供給用配電箱（責任分界点キャビネット）の下方に所定高さの配線空間を確保するキャビネット台とをさらに備え、組立てられた状態のフレーム部は、キャビネット台に隣接配置され、責任分界点キャビネット内において、いずれかの作業空間内の配電系統が、配線空間を通じて、ＶＣＴ用設置空間に引き込まれ、電力計器用変成器に接続されていることが好ましい。 In the above invention, a distribution box for supply (responsible demarcation point cabinet) in which the interior is partitioned into a plurality of work spaces, each work space is closed by an open / close door, and each distribution system is stored in each work space, and a demarcation point And a cabinet base for securing a wiring space of a predetermined height below the distribution box for supply (responsibility demarcation point cabinet). The assembled frame portion is disposed adjacent to the cabinet base. In the responsibility demarcation point cabinet, it is preferable that the power distribution system in any one of the work spaces is drawn into the VCT installation space through the wiring space and connected to the power meter transformer.
なお、上記発明において、責任分界点である供給用配電箱（キャビネット)と、受電設備との間に取付けるべき前記ＶＣＴの設置空間は、通常独立した架台上に確保されなければならないが、前記組立てられた状態のフレーム部は、キャビネット内の作業空間内において配電系統に接続された電線が、前記ＶＣＴ用設置空間に引き込まれ、前記電力計器用変成器(ＶＣＴ)に接続されていることが好ましい。 In the above invention, the installation space for the VCT to be mounted between the distribution box for supply (cabinet), which is the demarcation point, and the power receiving equipment must be secured on an independent stand. It is preferable that the frame portion in the state of being connected is connected to the power meter transformer (VCT) in which the electric wires connected to the power distribution system in the work space in the cabinet are drawn into the VCT installation space. .
そして、上記フレーム構築ステップでは、内部が複数の作業空間に仕切られ、各作業空間が開閉扉で閉止され、各作業空間内に配電系統をそれぞれ収納する責任分界点キャビネットを、キャビネット台上に載置し、責任分界点キャビネットの下方に所定高さの配線空間を確保するとともに、組立てられた状態のフレーム部を、キャビネット台に隣接配置し、責任分界点キャビネット内において、いずれかの作業空間内の配電系統を、配線空間を通じて、ＶＣＴ用設置空間に引き込み、配電系統を電力計器用変成器に接続することが好ましい。 Then, in the frame construction step, the interior is partitioned into a plurality of work spaces, each work space is closed with an open / close door, and a responsible demarcation point cabinet that houses the power distribution system in each work space is mounted on the cabinet base. And secure a wiring space of a predetermined height below the responsibility demarcation point cabinet, and the assembled frame part is placed adjacent to the cabinet base, and within the responsibility demarcation point cabinet, in any work space It is preferable that the power distribution system is drawn into the VCT installation space through the wiring space, and the power distribution system is connected to the power meter transformer.
また、上記発明において、ＶＣＴ用設置空間の下方には、所定高さの配線空間を確保するＶＣＴ用配線空間が形成され、外部からの配電系統が、ＶＣＴ用配線空間を通じて、ＶＣＴ用設置空間に引き込まれ、電力計器用変成器に接続されていることが好ましい。 In the above invention, a VCT wiring space that secures a wiring space of a predetermined height is formed below the VCT installation space, and an external power distribution system is connected to the VCT installation space through the VCT wiring space. It is preferably drawn in and connected to a power meter transformer.
そして、上記フレーム構築ステップでは、ＶＣＴ用設置空間の下方に、所定高さのＶＣＴ用配線空間を確保するとともに、外部からの配電系統を、ＶＣＴ用配線空間を通じて、ＶＣＴ用設置空間に引き込み、電力計器用変成器に接続することが好ましい。 In the frame construction step, a VCT wiring space having a predetermined height is secured below the VCT installation space, and an external distribution system is drawn into the VCT installation space through the VCT wiring space. It is preferably connected to an instrument transformer.
この場合には、責任分界点キャビネットからの配電系統は、アングル材によって構成されたＶＣＴ用配線空間を通じて、電力計器用変成器に接続することができるので、責任分界点キャビネットからの配電系統を各方向から自由に取り回すことができ、責任分界点キャビネットと、電力計器用変成器を含む受電設備との配置を自由に設置することができる。 In this case, the power distribution system from the responsibility demarcation point cabinet can be connected to the power meter transformer through the VCT wiring space formed by the angle material, so that each power distribution system from the responsibility demarcation point cabinet is connected to each power distribution system. It can be freely routed from the direction, and the arrangement of the responsibility demarcation point cabinet and the power receiving equipment including the power meter transformer can be freely installed.
以上説明したように本発明の構造によれば、配電線路より中高層集合住宅向けに高圧受電するに際しては、自家用電気工作物として受電設備及び変圧器を設置する必要があるが、このうち、配電線路と構内とを有効に切り離すとともに、構内事故の場合当該回路を確実に遮断し、配電線路に対し事故の拡大を防止するための遮断器、保護継電器、力率改善用コンデンサ、電力ヒューズ、電圧計・電流計及び計器用変成器並びに電力計器用変成器(ＶＣＴ)その他を含む受電設備を設置する際に、現場作業の効率化・省力化を図ることができる。 As described above, according to the structure of the present invention, it is necessary to install a power receiving facility and a transformer as an electric work for private use when receiving high-voltage power from a distribution line to a middle- and high-rise apartment house. Circuit breaker, protective relay, power factor improving capacitor, power fuse, voltmeter -When installing power receiving equipment including ammeters, instrument transformers, power meter transformers (VCT), etc., it is possible to improve the efficiency and labor saving of on-site work.
具体的には以下のような効果を期待することができる。
（１）限られた空間の中に受電設備を設置するために、電力取引用変成器又は取引用計器、力率改善設備、断路器、計器用変流器、計器用変圧器、継電器、及び遮断器等の受電設備を最小限のスペースで設置することが可能となる。
（２）従来であれば装置を多角面にて区画するのが一般的であったが、本発明によれば、一区画面しか必要としないため、設置場所の制約を低減することができる。
（３）軽量化を図るためにＬ型アングルにて骨組みを形成したことから、側面等のバリアについては必要な箇所に容易に取付けることができる。
（４）上記記載の装置において、何段かに分解できる構造を有し、装置のスリム化、軽量化及び分解構造化を図ったために持ち運びが人員にて容易に行うことができる。
（５）上記フレーム部はアングル構造であるため、箱体の受電装置と異なり引き込の電線と送り出しの電線の引き入れ場所を容易に設定でき、現地での改造工事が容易に行うことができる。
Specifically, the following effects can be expected.
(1) In order to install power receiving equipment in a limited space, power trading transformers or trading instruments, power factor improvement equipment, disconnectors, instrument current transformers, instrument transformers, relays, and It is possible to install power receiving equipment such as a circuit breaker in a minimum space.
(2) Conventionally, it is common to partition the apparatus by polygonal surfaces. However, according to the present invention, since only one section screen is required, it is possible to reduce the restrictions on the installation location.
(3) Since the framework is formed with an L-shaped angle in order to reduce the weight, the barrier such as the side surface can be easily attached to a necessary portion.
(4) The apparatus described above has a structure that can be disassembled in several steps, and can be easily carried by a person because the apparatus is slimmed, lightened, and disassembled.
(5) Since the frame part has an angle structure, unlike the box-type power receiving device, it is possible to easily set the drawing-in place of the lead-in electric wire and the sending-out electric wire, and the remodeling work at the site can be easily performed.
（受電設備の収納ラックの構成）
本発明の実施形態について、図面を参照しつつ説明する。図１Ａ及び図１Ｂは、実施形態に係る受電設備の設置構造を示す正面図であり、図２は、本実施形態に係る受電設備の収納ラックの概略構成を示す斜視図であり、図３は、その正面図及び側面図である。本実施形態において収納ラック５５は、変圧器室内のコンクリート床面上に設置され、その内部に受電設備が設置される。
(Configuration of power receiving equipment storage rack)
Embodiments of the present invention will be described with reference to the drawings. 1A and 1B are front views showing an installation structure of a power receiving facility according to the embodiment, FIG. 2 is a perspective view showing a schematic configuration of a storage rack of the power receiving facility according to the present embodiment, and FIG. They are the front view and side view. In the present embodiment, the storage rack 55 is installed on the concrete floor in the transformer room, and power receiving equipment is installed therein.
具体的に、収納ラック５５は、アングル材によって構成された複数の単位フレーム５０ａ〜５０ｂを分解可能に組立てて構築されるフレームである。そして、この収納ラック５５は、分解された状態のアングル材に受電設備（屋内用高圧交流負荷開閉器（ＬＢＳ）２０ａ〜ｃ、コンデンサ用ＰＣ２５ａ〜ｃ、進相コンデンサ３０、ＶＣＴ４０等）を固定する固定手段と、フレームが組立てられ収納ラック５５が完成された状態において、受電設備に含まれる機器同士を接続する配電線１０，１２，１３，１４及び１５とを有する。なお、上記受電設備の装置構成は一例であり、例えば上記ＬＢＳの代わりにＶＣＢ（高圧真空遮断機）等を組み入れてもよい。ここで、受電設備とは、 配電線路より中高層集合住宅向けに高圧受電するに際し、配電線路と構内とを有効に切り離すとともに、構内事故の場合当該回路を確実に遮断し、配電線路に対し事故の拡大を防止するための遮断器、保護継電器、力率改善用コンデンサ、電力ヒューズ、電圧計・電流計及び計器用変成器並びに電力計器用変成器（ＶＣＴ）その他を含む自家用電気工作物である。 Specifically, the storage rack 55 is a frame constructed by assembling a plurality of unit frames 50a to 50b made of angle members so as to be disassembled. The storage rack 55 fixes power receiving equipment (indoor high-voltage AC load switches (LBS) 20a to c, capacitor PCs 25a to c, phase advance capacitor 30, VCT 40, etc.) to the angled material in an exploded state. In the state where the frame is assembled and the storage rack 55 is completed, the fixing means and the distribution lines 10, 12, 13, 14, and 15 for connecting the devices included in the power receiving facility are included. In addition, the apparatus structure of the said power receiving installation is an example, For example, you may incorporate VCB (high pressure vacuum circuit breaker) etc. instead of the said LBS. Here, the power receiving facility means that when high-voltage power is received from the distribution line to the middle- and high-rise apartments, the distribution line is effectively separated from the premises, and in the case of a premises accident, the circuit is securely cut off, and the distribution line is Self-contained electrical work including circuit breakers to prevent expansion, protective relays, power factor correction capacitors, power fuses, voltmeters / ammeters and instrument transformers, power meter transformers (VCT) and others.
特に、この収納ラック５５は、スリム化を図るために主遮断装置２０ａ〜ｃ下に電力計器用変成器（ＶＣＴ）４０を設置するためのＶＣＴ用設置空間４０ａが設けられているとともに、施工時間短縮及び装置のスリム化を図るために進相コンデンサ３０を電力計器用変成器４０の裏に設置するスペースが設けられている。そして、この組立てられた状態の収納ラック５５内において、受電設備の一部又は全部が、ＶＣＴ用設置空間４０ａの上方に積み上げられている。 In particular, the storage rack 55 is provided with a VCT installation space 40a for installing a power meter transformer (VCT) 40 under the main shut-off devices 20a to 20c for slimming, and the construction time. A space for installing the phase advance capacitor 30 on the back of the power meter transformer 40 is provided for shortening and slimming of the apparatus. In the assembled storage rack 55, a part or all of the power receiving equipment is stacked above the VCT installation space 40a.
また、ＶＣＴ用設置空間４０ａの下方には、所定高さの配線空間を確保するＶＣＴ用配線空間４１ａが形成されている。そして、このＶＣＴ用配線空間４１ａを通じて、外部からの配電系統がＶＣＴ用設置空間４０ａに引き込まれ、電力計器用変成器４０に接続されるようになっている。 A VCT wiring space 41a for securing a wiring space of a predetermined height is formed below the VCT installation space 40a. An external power distribution system is drawn into the VCT installation space 40a through the VCT wiring space 41a and connected to the power meter transformer 40.
詳述すると、収納ラック５５の内部には、ＬＢＳ２０ａ〜ｃ、コンデンサ用ＰＣ（一次側開閉器：プライマリー・カットアウト）２５ａ〜ｃ、進相コンデンサ３０が収納され、それぞれ単位フレーム５０ａ〜５０ｂに固定されている。 More specifically, the storage rack 55 contains LBSs 20a to 20c, capacitor PCs (primary cut-off switches: primary cutouts) 25a to c, and phase advance capacitors 30, which are fixed to the unit frames 50a to 50b, respectively. Has been.
各単位フレーム５０ａ〜５０ｂには、３本の一次側配電線１０及び電力計器用変成器４０に接続された３本の一次側配電線（高圧母線）１２が架線され、コンデンサ用ＰＣ２５ａ〜ｃを経て、配電線１４を介し、進相コンデンサ３０が取付けられている。 In each unit frame 50a-50b, three primary distribution lines 10 (high voltage busbars) 12 connected to three primary distribution lines 10 and a power meter transformer 40 are overlaid, and capacitor PCs 25a-c are connected. Then, the phase advance capacitor 30 is attached via the distribution line 14.
前記一次側配電線１２は、ポリエチレン絶縁電線で構成されており、主遮断装置２０ａ〜ｃに接続されている。この主遮断装置２０ａ〜ｃの分岐線１３は、コンデンサ用ＰＣ２５ａ〜ｃに接続されており、これらコンデンサ用ＰＣ２５ａ〜ｃは、配電線１４を介して前記進相コンデンサ３０に接続されている。ＬＢＳからの分岐線１５は、各戸需要家の変圧器用電源配線として使用される。ＬＢＳ２０は、収納ラック５５の最上部に位置しているため、このＬＢＳ２０に接続された分岐線１５は、収納ラック５５の上方から、各方向へ自由に取り回すことができる。 The said primary side distribution line 12 is comprised with the polyethylene insulated wire, and is connected to main circuit breaker 20a-c. The branch lines 13 of the main circuit breakers 20a to 20c are connected to the capacitor PCs 25a to 25c, and these capacitor PCs 25a to 25c are connected to the phase advance capacitor 30 via the distribution line 14. The branch line 15 from the LBS is used as a power supply wiring for a transformer of each household customer. Since the LBS 20 is located at the top of the storage rack 55, the branch line 15 connected to the LBS 20 can be freely routed in each direction from above the storage rack 55.
また、一次側配電線１０は、電力計器用変成器４０と、供給用配電箱である責任分界点キャビネット１００とを接続する配電線であり、ＶＣＴ用配線空間４１ａを通じて、外部からの配電系統がＶＣＴ用設置空間４０ａに引き込まれ、電力計器用変成器４０に接続されるようになっている。詳述すると、収納ラック５５内におけるＶＣＴ用設置空間４０ａ内の下方には、電力計器用変成器４０を設置する取付け板４１が設置されており、そして、この取付け板４１を収納ラック５５の所定高さに配置することにより、この取付け板４１の下方において、所定高さのＶＣＴ用配線空間４１ａが確保されるようになっている。これにより、電力計器用変成器４０に接続された一時側配電線１０は、このアングル材によって構成されたＶＣＴ用配線空間４１ａを通ることで、図１Ａ及び図１Ｂに示すように、各方向へ自由に取り回すことができ、責任分界点キャビネット１００に接続される。 The primary distribution line 10 is a distribution line that connects the power meter transformer 40 and the responsibility demarcation point cabinet 100 that is a distribution box for supply, and an external distribution system is connected through the VCT wiring space 41a. It is drawn into the VCT installation space 40 a and is connected to the power meter transformer 40. More specifically, a mounting plate 41 for installing the power meter transformer 40 is installed below the VCT installation space 40 a in the storage rack 55, and this mounting plate 41 is attached to a predetermined of the storage rack 55. By arranging them at a height, a VCT wiring space 41 a having a predetermined height is secured below the mounting plate 41. As a result, the temporary distribution line 10 connected to the power meter transformer 40 passes through the VCT wiring space 41a formed by this angle member, and as shown in FIGS. 1A and 1B, in each direction. It can be freely routed and connected to the responsibility demarcation point cabinet 100.
（受電設備の設置方法）
以上の構成を有する収納ラック５５を用いることによって、本発明の受電設備の設置方法を実施することができる。図４は、本実施形態に係る責任分界点キャビネットの概略構成を示す正面図であり、図５は、本実施形態に係る受電設備の設置方法の手順を示す説明図であり、図６は、そのフローチャート図である。ここでは、配電線路より中高層集合住宅向けに高圧受電するに際し、集合住宅２２０において、需要家から電力会社に貸し室として提供される変電設備室２２０ａ（図７参照）に、電力会社所有の変電設備、及び自家用電気工作物として受電設備及び変圧器を設置して電力を供給する場合を例に説明する。
(Installation method of power receiving equipment)
By using the storage rack 55 having the above configuration, the installation method of the power receiving facility of the present invention can be implemented. FIG. 4 is a front view illustrating a schematic configuration of the responsibility demarcation point cabinet according to the present embodiment, FIG. 5 is an explanatory diagram illustrating a procedure of the installation method of the power receiving facility according to the present embodiment, and FIG. It is the flowchart figure. Here, when high-voltage power is received from a distribution line to a middle- and high-rise apartment building, in the apartment building 220, a substation facility owned by the power company is supplied to a substation facility room 220a (see FIG. 7) provided as a rental room from a consumer to the power company. A case where power is supplied by installing a power receiving facility and a transformer as an electric work for home use will be described as an example.
先ず、工場２００など、施工現場である変電設備室２２０ａから離れた場所において、作業員２０１によって、分解状態ステップ（Ｓ１０１）を行う。具体的には、アングル材５０を組立てて単位フレーム５０ａ〜５０ｂをそれぞれ製作し、収納ラック５５が複数の単位フレーム５０ａ〜５０ｂに分解された状態にする。この状態において、単位フレーム５０ａ〜５０ｂを構成するアングル材に受電設備（ＬＢＳ２０ａ〜ｃ、コンデンサ用ＰＣ２５ａ〜ｃ、進相コンデンサ３０）を固定する。 First, the disassembly state step (S101) is performed by the worker 201 at a place away from the substation equipment room 220a, which is a construction site, such as the factory 200. Specifically, the angle member 50 is assembled to manufacture the unit frames 50a to 50b, and the storage rack 55 is disassembled into a plurality of unit frames 50a to 50b. In this state, the power receiving equipment (LBS 20a-c, capacitor PCs 25a-c, phase advance capacitor 30) is fixed to the angle members constituting the unit frames 50a-50b.
次いで、搬入ステップ（Ｓ１０２）を実施する。ここでは、分解状態ステップで製作された単位フレーム５０ａ〜５０ｂを、トラック等の車両２１０により運搬し、設置場所である変電設備室２２０ａに搬入する。 Next, a carry-in step (S102) is performed. Here, the unit frames 50a to 50b manufactured in the disassembly state step are transported by the vehicle 210 such as a truck and are carried into the substation equipment room 220a that is the installation location.
この変電設備室２２０ａには、責任分界点キャビネット１００が設置され、収納ラック５５は、この責任分界点キャビネット１００に対して隣接配置される。責任分界点キャビネット１００は、内部が複数の作業空間１１０ａ及び１１０ｂに仕切られ、各作業空間１１０ａ及び１１０ｂは、開閉扉１０２ａ及び１０２ｂでそれぞれ閉止されている。また、各作業空間１１０ａ及び１１０ｂ内には、配電系統１１１ａ及び１１１ｂがそれぞれ収納される。この配電系統１１１ａ及び１１１ｂは、接続端子とケーブルとから構成され、作業空間１１０ａ及び１１０ｂ内上部に設置された接続端子から下方へとケーブルが配線されている。この責任分界点キャビネット１００の底面は開口されており、床板を嵌め込むことにより閉止される。この底板には、作業空間１１０ａ内に連通する連通孔１０１が設けられている。 In the substation equipment room 220a, the responsible demarcation point cabinet 100 is installed, and the storage rack 55 is disposed adjacent to the responsible demarcation point cabinet 100. The responsibility demarcation point cabinet 100 is partitioned into a plurality of work spaces 110a and 110b, and the work spaces 110a and 110b are closed by opening and closing doors 102a and 102b, respectively. In addition, the power distribution systems 111a and 111b are housed in the work spaces 110a and 110b, respectively. Each of the power distribution systems 111a and 111b includes a connection terminal and a cable, and the cable is wired downward from the connection terminal installed in the upper part of the work spaces 110a and 110b. The bottom surface of this responsibility demarcation point cabinet 100 is opened, and is closed by fitting a floor board. The bottom plate is provided with a communication hole 101 communicating with the work space 110a.
また、この責任分界点キャビネット１００は、キャビネット台１５０上に載置されており、責任分界点キャビネット１００の下方に所定高さの配線空間が確保されるようになっている。このキャビネット台１５０は、アングル材等の鉄製の枠体であり、作業空間１１０ａ内から引き出されたケーブルが通せるようになっている。 The responsibility demarcation point cabinet 100 is mounted on a cabinet base 150, and a wiring space having a predetermined height is secured below the responsibility demarcation point cabinet 100. The cabinet base 150 is an iron frame such as an angle member, and can pass a cable drawn from the work space 110a.
そして、変電設備室２２０ａにおいて、搬入された単位フレーム５０ａ〜５０ｂを組立てて収納ラック５５を構築する（Ｓ１０３）。このとき、組立てられた状態の収納ラック５５内に、電力計器用変成器４０が設置されるＶＣＴ用設置空間４０ａが確保され、このＶＣＴ用設置空間４０ａ内の下面に、取付け板４１を設置し、この取付け板４１の上にＶＣＴ４０を設置する。この結果、この組立てられた状態の収納ラック５５内において、受電設備の一部又は全部が、ＶＣＴ用設置空間４０ａの上方に積み上げる形となる。また、電力計器用変成器４０を設置する取付け板４１を収納ラック５５の所定高さに配置し、ＶＣＴ用設置空間４０ａの下方に、所定高さのＶＣＴ用配線空間４１ａを確保する。 Then, in the substation equipment room 220a, the unit frames 50a to 50b carried in are assembled to construct the storage rack 55 (S103). At this time, a VCT installation space 40a in which the power meter transformer 40 is installed is secured in the assembled storage rack 55, and a mounting plate 41 is installed on the lower surface of the VCT installation space 40a. The VCT 40 is installed on the mounting plate 41. As a result, in the assembled storage rack 55, a part or all of the power receiving equipment is stacked above the VCT installation space 40a. Further, the mounting plate 41 for installing the power meter transformer 40 is arranged at a predetermined height of the storage rack 55, and a VCT wiring space 41a having a predetermined height is secured below the VCT installation space 40a.
その後、収納ラック５５のフレームを構築する際に、受電設備に含まれる機器同士を、配線手段により接続する。また、組立てられた状態の収納ラック５５は、キャビネット台１５０に隣接配置され、責任分界点キャビネット１００内において、作業空間１１０ａ内の配電系統が、配電線１０として、配線空間１５０ａ及びＶＣＴ用配線空間４１ａを通じて、ＶＣＴ用設置空間４０ａに引き込まれ、電力計器用変成器４０に接続される。 Thereafter, when the frame of the storage rack 55 is constructed, the devices included in the power receiving facility are connected by the wiring means. In addition, the assembled storage rack 55 is disposed adjacent to the cabinet base 150, and in the responsibility demarcation point cabinet 100, the distribution system in the work space 110 a serves as the distribution line 10 as the wiring space 150 a and the VCT wiring space. It is drawn into the VCT installation space 40a through 41a and connected to the power meter transformer 40.
（作用・効果）
本実施形態によれば、変電設備室における受電設備の設置工事において、予め、工場など設置現場以外の場所において単位フレーム５０ａ〜５０ｂに必要な受電設備（変圧器，電力ヒューズ, 一次側配電線及び一次側開閉器など）を組み付けておき、その状態で設置現場に搬入し、現場にて全体として枠状の収納ラック５５を組立てた後、変電設備に含まれる機器同士を接続する。この結果、現場での組み付け作業を軽減することができる。
(Action / Effect)
According to the present embodiment, in the installation work of the power receiving equipment in the substation equipment room, the power receiving equipment (transformers, power fuses, primary side distribution lines, and the like necessary for the unit frames 50a to 50b in a place other than the installation site such as a factory beforehand. The primary side switch etc. are assembled, and it is carried to the installation site in that state. After the frame-shaped storage rack 55 is assembled as a whole at the site, the devices included in the substation equipment are connected to each other. As a result, on-site assembly work can be reduced.
また、限られた空間の中に変電設備を設置するために、電力取引用変成器又は取引用計器、力率改善設備、断路器、計器用変流器、計器用変圧器、継電器及び遮断器等の受電設備を最小限のスペースで設置することが可能となる。 In addition, in order to install substation equipment in a limited space, transformers for power trading or trading instruments, power factor improvement equipment, disconnectors, instrument current transformers, instrument transformers, relays and circuit breakers It is possible to install power receiving equipment such as a minimum space.
具体的には、受電設備の設置工事前では、図７（ａ）で示すように、変電設備室２２０ａ内においては、断路器ＤＳ８０及び変圧器７０が複数個並んだ状態にある。このため、受電設備の設置工事を行う場合、この変電設備室２２０ａ内に、さらに屋内用高圧交流負荷開閉器（ＬＢＳ）２０ａ〜ｃ、コンデンサ用ＰＣ２５ａ〜ｃ、進相コンデンサ３０、ＶＣＴ４０等を設置する必要があり、従来では、図７（ｂ）に示すように、これらの各装置を広範囲に設置するのが一般的であった。この場合、装置を広範囲に設置しているので、責任分界点キャビネット１００を変電設備室２００ａ内に設置することができず、例えば、変電設備室２２０ａ外に設置された責任分界点キャビネット１００と接続工事を行うこととなり、作業効率が低下するおそれがあった。 Specifically, before the installation work of the power receiving facility, as shown in FIG. 7A, a plurality of disconnecting devices DS80 and transformers 70 are arranged in the substation facility room 220a. For this reason, when installing the power receiving equipment, an indoor high voltage AC load switch (LBS) 20a-c, capacitor PC 25a-c, a phase advance capacitor 30, VCT 40, etc. are further installed in the substation equipment room 220a. Conventionally, as shown in FIG. 7B, it has been common to install each of these devices over a wide range. In this case, since the apparatus is installed in a wide range, the responsibility demarcation point cabinet 100 cannot be installed in the substation equipment room 200a. For example, it is connected to the responsibility demarcation point cabinet 100 installed outside the substation equipment room 220a. There was a risk that work efficiency would be reduced due to construction work.
これに対し、本実施形態によれば、図７（ｃ）に示すように、枠状の収納ラック５５の限られた面積内において、屋内用高圧交流負荷開閉器（ＬＢＳ）２０ａ〜ｃ、コンデンサ用ＰＣ２５ａ〜ｃ、進相コンデンサ３０、ＶＣＴ４０等を設置することができ、装置設置場所を一区画しか必要としないため、設置場所の制約を低減することができる。これにより、変電設備室２２０ａ内にスペースが発生するので、変電設備室２２０ａ内に、責任分界点キャビネット１００を配置することができ、接続工事が容易となるので、現場作業の効率化・省力化を図ることができる。 On the other hand, according to the present embodiment, as shown in FIG. 7 (c), within the limited area of the frame-shaped storage rack 55, the indoor high voltage AC load switches (LBS) 20a to 20c, capacitors PCs 25a to 25c, the phase advance capacitor 30, the VCT 40, and the like can be installed, and only one section of the apparatus installation site is required, so that restrictions on the installation site can be reduced. As a result, a space is generated in the substation equipment room 220a. Therefore, the responsibility demarcation point cabinet 100 can be arranged in the substation equipment room 220a, and the connection work is facilitated. Can be achieved.
また、収納ラック５５は、軽量化を図るためにＬ型アングルにて骨組みを形成したことから、側面等のバリアについては簡易的な措置にとどめることができる。 In addition, since the storage rack 55 is formed of a frame with an L-shaped angle in order to reduce the weight, it is possible to limit the barriers such as the side surfaces to simple measures.
上記記載の装置において、何段かに分解できる構造を有し、装置のスリム化、軽量化、及び分解構造化を図ったために持ち運びが、少ない人員で容易に行うことができる。また、収納ラック５５は、アングル構造であるため、箱体の受電装置と異なり引き込の電線と送り出しの電線の引き入れ場所を容易に設定でき、現地での改造工事が容易に行うことができる。 The apparatus described above has a structure that can be disassembled in several steps, and can be easily carried by a small number of people because the apparatus is slimmed, lightened, and disassembled. In addition, since the storage rack 55 has an angle structure, unlike the box-type power receiving device, it is possible to easily set the drawing-in place of the lead-in wire and the lead-out wire, and the remodeling work at the site can be easily performed.
また、ＶＣＴ用設置空間４０ａの下方には、所定高さの配線空間を確保するＶＣＴ用配線空間４１ａが形成され、責任分界点キャビネット１００からの配電系統が、アングル材によって構成されたＶＣＴ用配線空間４１ａを通じて、ＶＣＴ用設置空間４０ａに引き込まれ、電力計器用変成器に接続されているので、図１Ａ及び図１Ｂに示すように、責任分界点キャビネットからの配電系統を各方向から自由に取り回すことができ、責任分界点キャビネットと、電力計器用変成器を含む受電設備との配置を自由に設置することができる。 In addition, a VCT wiring space 41a that secures a wiring space of a predetermined height is formed below the VCT installation space 40a, and a power distribution system from the responsibility demarcation point cabinet 100 is formed by an angle member. Since it is drawn into the VCT installation space 40a through the space 41a and connected to the power meter transformer, as shown in FIGS. 1A and 1B, the distribution system from the responsible demarcation point cabinet can be freely taken from each direction. It can be rotated, and the arrangement of the responsibility demarcation point cabinet and the power receiving equipment including the power meter transformer can be freely installed.
なお、本実施形態に係る受電設備の設置構造及び設置方法は、既築の中高層集合住宅への適用を例としたが、これに限定するものではなく、新築の集合住宅の場合にも適用することができ、現場作業の短縮や工場製作による合理化を通じて、総コストの低減に寄与することができる。 In addition, although the installation structure and installation method of the power receiving equipment according to the present embodiment have been applied to an existing medium-to-high-rise apartment house, the present invention is not limited to this and is also applied to a newly built apartment house. It can contribute to the reduction of the total cost through shortening of field work and rationalization by factory production.
１０，１２，１３，１４，１５…高圧配線
２０ａ〜ｃ…主遮断装置
２５ａ〜ｃ…コンデンサ用ＰＣ
３０…進相コンデンサ
４０…電力計器用変成器
４１ａ…配線空間
５０…アングル材
５０ａ，５０ｂ…単位フレーム
５５…収納ラック
２００…工場
２０１…作業員
２１０…車両
２２０…集合住宅
２２０ａ…変電設備室
１００…責任分界点キャビネット
１５０…キャビネット台
４０ａ…ＶＣＴ用設置空間
１０１…連通孔
１１０ａ，１１０ｂ…作業空間
１０２ａ，１０２ｂ…開閉扉
１１１ａ，１１１ｂ…配電系統
４１…取付け板
10, 12, 13, 14, 15 ... high-voltage wiring 20a-c ... main shut-off device 25a-c ... capacitor PC
DESCRIPTION OF SYMBOLS 30 ... Phase advance capacitor 40 ... Power meter transformer 41a ... Wiring space 50 ... Angle material 50a, 50b ... Unit frame 55 ... Storage rack 200 ... Factory 201 ... Worker 210 ... Vehicle 220 ... Apartment house 220a ... Substation equipment room 100 ... Responsible demarcation point cabinet 150 ... Cabinet base 40a ... Installation space for VCT 101 ... Communication hole 110a, 110b ... Work space 102a, 102b ... Opening / closing door 111a, 111b ... Distribution system 41 ... Mounting plate
Claims (6)
アングル材によって構成された複数の単位フレームを、分解可能に組立てて構築されるフレーム部と、
分解された状態のアングル材に、電力計器用変成器（ＶＣＴ）以外の前記受電設備を固定する固定手段と、
前記フレーム部が組立てられた状態において、前記受電設備に含まれる機器同士を接続する配線手段と
を有し、
前記組立てられた状態のフレーム部内には、前記電力計器用変成器が設置されるＶＣＴ用設置空間が確保され、
前記組立てられた状態のフレーム部内において、前記受電設備の一部又は全部が、前記ＶＣＴ用設置空間の上方に積み上げられている
ことを特徴とする受電設備の設置構造。 An installation structure of a power receiving facility including a transformer that transforms a distribution line voltage to a voltage for a medium- and high-rise apartment building,
A frame portion constructed by assembling a plurality of unit frames composed of angle members so as to be disassembled;
Fixing means for fixing the power receiving equipment other than the power meter transformer (VCT) to the angled material in a disassembled state;
In a state where the frame portion is assembled, it has wiring means for connecting devices included in the power receiving facility,
In the assembled frame portion, a VCT installation space in which the power meter transformer is installed is secured,
The power receiving equipment installation structure, wherein a part or all of the power receiving equipment is stacked above the VCT installation space in the assembled frame portion.
該責任分界点キャビネットが載置され、該責任分界点キャビネットの下方に所定高さの配線空間を確保するキャビネット台と
をさらに備え、
前記組立てられた状態のフレーム部は、前記キャビネット台に隣接配置され、
責任分界点キャビネット内において、いずれかの前記作業空間内の前記配電系統が、前記配線空間を通じて、前記ＶＣＴ用設置空間に引き込まれ、前記電力計器用変成器に接続されている
ことを特徴とする請求項１に記載の受電設備の設置構造。 Responsible demarcation point cabinets, each of which is partitioned into a plurality of work spaces, each work space is closed with an open / close door, and each distribution system is stored in each work space,
The responsibility demarcation point cabinet is placed, and further comprises a cabinet base for securing a wiring space of a predetermined height below the responsibility demarcation point cabinet,
The assembled frame portion is disposed adjacent to the cabinet base,
In the responsibility demarcation point cabinet, the power distribution system in any one of the work spaces is drawn into the VCT installation space through the wiring space and connected to the power meter transformer. The installation structure of the power receiving equipment according to claim 1.
外部からの配電系統が、前記ＶＣＴ用配線空間を通じて、前記ＶＣＴ用設置空間に引き込まれ、前記電力計器用変成器に接続されている
ことを特徴とする請求項１又は２に記載の受電設備の設置構造。 Below the VCT installation space, a VCT wiring space that secures a wiring space of a predetermined height is formed.
The power distribution system according to claim 1 or 2, wherein an external power distribution system is drawn into the VCT installation space through the VCT wiring space and connected to the power meter transformer. Installation structure.
アングル材を分解可能に組立てて構成されるフレーム部を、単位フレームに分解した状態において、分解された状態のアングル材に、電力計器用変成器（ＶＣＴ）以外の前記受電設備を固定する分解状態ステップと、
前記分解状態ステップで製作された単位フレームを、前記受電設備の設置場所に搬入する搬入ステップと、
前記単位フレームを組立てて前記フレーム部を構築するフレーム構築ステップと、
前記受電設備に含まれる機器同士を接続する配線ステップと
を有し、前記フレーム構築ステップでは、
前記組立てられた状態のフレーム部内に、前記電力計器用変成器が設置されるＶＣＴ用設置空間を確保するとともに、この組立てられた状態のフレーム部内において、前記受電設備の一部又は全部を、前記ＶＣＴ用設置空間の上方に積み上げる
ことを特徴とする受電設備の設置方法。 A method for installing a power receiving facility including a transformer that transforms a distribution line voltage to a voltage for a medium- and high-rise apartment building,
The disassembled state in which the power receiving equipment other than the power meter transformer (VCT) is fixed to the disassembled angle material in a state in which the frame portion constructed by disassembling the angle material is disassembled into unit frames. Steps,
A carrying-in step of carrying in the unit frame produced in the disassembling state step to an installation place of the power receiving facility;
A frame construction step of assembling the unit frame to construct the frame portion;
A wiring step for connecting devices included in the power receiving facility, and in the frame construction step,
In the assembled frame portion, a VCT installation space in which the power meter transformer is installed is secured, and in the assembled frame portion, part or all of the power receiving equipment is A method of installing a power receiving facility, wherein the device is stacked above a VCT installation space.
内部が複数の作業空間に仕切られ、各作業空間が開閉扉で閉止され、各作業空間内に配電系統をそれぞれ収納する責任分界点キャビネットを、キャビネット台上に載置し、該責任分界点キャビネットの下方に所定高さの配線空間を確保するとともに、
前記組立てられた状態のフレーム部を、前記キャビネット台に隣接配置し、
責任分界点キャビネット内において、いずれかの前記作業空間内の前記配電系統を、前記配線空間を通じて、前記ＶＣＴ用設置空間に引き込み、該配電系統を前記電力計器用変成器に接続する
ことを特徴とする請求項４に記載の受電設備の設置方法。 In the frame construction step,
A responsible demarcation point cabinet that is partitioned into a plurality of work spaces, each work space is closed by an open / close door, and each distribution system is housed in each work space is placed on a cabinet stand. While securing a wiring space of a predetermined height below
The frame portion in the assembled state is disposed adjacent to the cabinet base,
In the responsibility demarcation point cabinet, the power distribution system in any one of the work spaces is drawn into the VCT installation space through the wiring space, and the power distribution system is connected to the power meter transformer. The installation method of the power receiving equipment of Claim 4.
前記ＶＣＴ用設置空間の下方に、所定高さのＶＣＴ用配線空間を確保するとともに、
外部からの配電系統を、前記ＶＣＴ用配線空間を通じて、前記ＶＣＴ用設置空間に引き込み、前記電力計器用変成器に接続する
ことを特徴とする請求項４又は５に記載の受電設備の設置方法。 In the frame construction step,
A VCT wiring space having a predetermined height is secured below the VCT installation space, and
6. The method for installing power receiving equipment according to claim 4, wherein an external power distribution system is drawn into the VCT installation space through the VCT wiring space and connected to the power meter transformer.
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| JP5177782B1 (en) * | 2012-11-03 | 2013-04-10 | 株式会社ヒロセー | switchboard |
| CN103326264A (en) * | 2013-06-06 | 2013-09-25 | 国家电网公司 | Single-pole perpendicularly-telescopic outdoor high-voltage alternating-current disconnector replacing method |
| JP2014107936A (en) * | 2012-11-27 | 2014-06-09 | Gojo:Kk | Installation structure and installation method of substation facility |
| JP2015033251A (en) * | 2013-08-05 | 2015-02-16 | 日東工業株式会社 | Charger for electric vehicle |
| CN106654943A (en) * | 2016-11-21 | 2017-05-10 | 国网河南省电力公司周口供电公司 | Auxiliary working platform of substation transformer |
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